Roof Truss Design Overhang

While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses.

Roof truss design overhang.

The top chord can have two cuts. 16 4 12 residential end frame. Your top chords can protrude beyond the bottom chord anywhere from 1 3 feet 0 30 0 91 m. To accomplish this your end trusses should be designed with either one truss at five foot plus a notation stating they can support an 18 inch end overhang or have a spacing of 6 6.

The amount of rainfall in the area around your home. The balance between solar heat gain and shading you desire. If you think you d prefer an overhang style truss adjust the measurements for your top chords accordingly. The amount of shading that you would like for your windows and doors.

In designing the overhanging part of a roof you will need to keep in mind certain key features. In addition to the lean to shed there is a gable shed roof. The overhang of the truss is horizontal distance from the end of the bottom chord or wall to the end of the top chord of the truss. This roof is more complex because of the two different angles with the roof.

Before you input your values be sure to account for the extra 4 on each side for the span of your shed. Now that you know how steep you want your shed roof the pitch and how much overhang you want you can jump right to this shed roof truss design calculator. Top chord an inclined or horizontal member that establishes the upper edge of a truss usually carrying compression and bearing stress. On some roof trusses the 2 top chords extend down over the edges of the bottom chord creating a built in overhang.

The gable shed has a roof like a house so the roof trusses will have a peak in the middle. Guessing your building has a pair of trusses every 10 feet and a single truss on each end it will need to be designed to account overhang weight plus any other dead loads and snow loads. This roof truss is only one angle and a board that goes from high to low and back to front. The top chord can have two cuts.

Click to add item 24 spreadweb residential roof truss 5 12 pitch 87 to the compare list. Depending on the complexity of your free computational tool it may require you to enter details about rafter spacing usually 16 on center bridge type height and board size. When making a selection below to narrow your results down each selection made will reload the page to display the desired results.